1. Department of Laboratory MedicineKarolinska Institute Stockholm Sweden
2. Department of Dental MedicineKarolinska Institute Stockholm Sweden
3. Unit of Biostatistics, Institute of Environmental MedicineKarolinska Institute Stockholm Sweden
4. Department of Clinical Science, Intervention and TechnologyKarolinska Institute Stockholm Sweden
5. Department of OtorhinolaryngologyKarolinska University Hospital Huddinge Stockholm Sweden
6. Department of Clinical Immunology and Transfusion MedicineKarolinska University Hospital Huddinge Stockholm Sweden